AlaskaMatt - 2010-11-12

I don't know if anybody on this forum is able to help, but when I drop pngs into 'Process - Palette reduce 256 NeuQuant.bat' everything is fine until I drop more than 26 files at once. Dropping 27 files or more onto the bat I get the error "Windows cannot access the specified device, path, or file. You may not have the appropriate permissions to access the item." Anybody know what I need to do to work around this?